Choose the best answer to complete the sentences.1.If there________ no gravity, you do not weigh anything (be/is/were/was)2.If you________ a report, youll have to prepare it carefully.(do/did/will do/would do)3.If Hoa_________ home, shell tell her parents about her result.(call/ calls/calling/will call)4.If the local authorities ___________ littering, the environment will become bad. (dont prevent/not prevent/will not prevent/ didnt prevent)5.If I___________ an astronaut, I would observe the Ear...
Đọc tiếp
Choose the best answer to complete the sentences.
1.If there________ no gravity, you do not weigh anything (be/is/were/was)
2.If you________ a report, you'll have to prepare it carefully.(do/did/will do/would do)
3.If Hoa_________ home, she'll tell her parents about her result.(call/ calls/calling/will call)
4.If the local authorities ___________ littering, the environment will become bad. (don't prevent/not prevent/will not prevent/ didn't prevent)
5.If I___________ an astronaut, I would observe the Earth from the moon. (be/is/were/was)
6.I__________ to Lan's birthday party if she invites me. (go/will go/ went/gone)
7.If solar energy is used widely in the future, the environment ____________ .(will be protected/ will be protect/would be protected/would be protect)
8.If the teacher_________ us some homework, we have to stay home and do it. (gives/give/ will give/gave)
9.Their parents would be happy if they ________ the final exam. (passed/pass/will passed/would pass)
10.Please let me know if the teacher___________ .(will come/comes/coming/come)
11. If you______ to pass the exam, you should try harder. (wanted/want/will want/wants)
12.If I had time, I __________ the poor children with studying. (helped/help/will help/would help)
13.If I saw a UFO, I _____________ surprised. (not be/would not be/were not/ won't be)
14. If people destroy the rainforest, rare animals ____________. (would be killed/will kill/ will be killed/ would kill)
15.They will pass the final exam if they _________ hard. (will study/ studied/study/would study)
